Shera planks are perfect material for external sliding applications, including housing and even low rise apartments and office blocks. Shera plank is another version of lap siding with stand up the most demanding design, with Shera planks the installation is very simple and efficient. Shera planks can be colored before or after installation (double coating) with optional acrylic paint. This autoclaved, wood-grain and smooth siding plank acquires impressive toughness, yet remains flexible and dimensionally stable.